Wire tying device



Patented Dec. 2?, 1949 OFFICE WIRE TYING DEVICE Orlan S. Leel andCrawford F. Lee, Altamont, Kans.

' Application April 18, 1946, Serial No. 663,093

1 1 The object is to provide means to automatically tie wires aroundbales.

The invention is illustrated in the accompanythe lower end of a shaftshowing a transverse slot. Fig. 3 is a sectional view 0f half of a cone,looking in direction o f arrow c. The sectional Claims. Cl. 140-149)`ing drawing for which Fig. 1 is a side View show- .y ing a section of acam wheel. Fig. 2 is a view of view is cut on the line :zr-y of Fig. 1.Fig. 4 is al twisted portion, a looped portion and the ends of the wiresWound around the twisted portion.4

Fig. 9 shows the angle of an arm to force the wires into the slots ofthe twisting members.

Two or more of the devices acting in conjunction are employed in theoperation of baling. The. shaft I is journaled transversely above thebalechamber. The cam-wheelfZ is secured to the shaft I, one revolutionof which completes the tie. The shaft 3, Fig. 3, has a centrallongitudinal bore 4 in which is journaled the shaft 5. The

upper end of the shaft 5 is journaled in the box 8. The gear 1 issecured to the shaft 5 and is designed to be operated by the segment ofgear 8 on the cam-wheel 2. A cam-shoe 9 engages a the cam-wheel engagesthe gear II a predetermined distance in advance of gear segment 8engaging gear 1 which causes the shoulders I1-I1 to close the end ofslot I8, Figs. 1, 2, 3, and 4, and thereby retain the wires within theslot I8. Continued revolution of the cam-wheel twists the wires belowthe cone-shaped portion I6 forms a loop of the portions within the slotI8 and winds the ends of the wires around the twisted portion Figs. 7and 8. The gears II and I3disengage. The cam I5 engages the cam-shoewhich stops the rotation of shaft 3. Following this action the gear 1disengages gear 8. The cam I Il engages the cam-shoe 9 which stops therotation of shaft 5. The slots I1 and I8 are now again in alignment. Theshafts 3 and 5 revolve the same number of revolutions in the same lengthof time but the shaft 3 begins its revolutions in advance of shaft 5 soas to close the opening into the slot I8 and it completes itsrevolutions in advance so as to leave the slots I1 and I8 in alignmentto allow the looped portion to pass out of the slots. The object of thecone-shapedfportion is that as the shafts 3 and 5 revolve the wires willslip downward and form the twist below the coneshaped portion. Means areprovided to bring the wires into the slots I1 and I 8 and retain cam. I0on the cam-wheel 2 which serves to retain the shaft stationary exceptwhen the revolution of the cam-wheel 2 causes the gear 8 to engagegear 1. The cam Ill is cut away to allow the shaft 5 to be revolved. Theshaft 3 is journaled'in the box I2 and on the shaft 5 and has integraltherewith the gear II which is designed to be engaged by the segment ofgear I3. The cam-shoe 20 on the shaft 3 engages the cam I5 to retain theshaft stationary until the gear I3 engages the gear Il. The cam that aWire may pass into the slot I8.l When the two ends of the wire fromaround the bale are brought to within the slots I1 and I8 the tieingbegins. .The cam-Wheel is driven one revolution in direction of arrow d,Fig. 1, which causes the gear segments I3 and 8 to engage the gears IIand 1 respectively. The gear segment I3 of l5 them there until thebeginning of the operation of the device, comprising a wire carryingneedle 80, Fig. 1, and a retainer assembly, comprising a shaft 23journaled in the boxes 24-25. The

shaft 23 has mounted thereon the gear 21. One end of the hub 28 istriangular. Each of its faces forms a cam-shoe, each of which is adaptedto be successively engaged by the cam 29 of the cam-wheel. The gear 21makes one third revolution to one of the cam-wheel. The other end of thehub of the gear 21 has a slot 30. A pin 3| passes through the slot andinto the shaft 23 so that the shaft may be revolved ahead of the gear21. A spring 32 normally retains the parts in position shown in Fig. 1.A disc 33 is secured to the shaft 23 and has erected from its upper facesections of two parallel annular flanges 34, Figs. 1-6, which formgrooves 35 between them. An arm 36 extends radially from the box 25,Fig. 1, and in dotted line Fig. 6. The outer end of the arm extendsdownward into the groove 35. Three hook portions 31-31--31 and threechannels 38-38-38 are formed by cutting away portions from the body ofthe disc. The diameter of the shaft 23 is reduced at its lower end andpasses through the central bore 39 of the disc 40. It is contiguous tothe disc 33. Lock-nuts 4I-4I on the shaft 23 serve to retain the discs33 and 40 in adjustment. Disc 40 is held stationary by means of an arm42, part of which is shown in Fig. 5. The arm extends radially and issecured to an arm from the box 25. Disc 40 has cutaway portions 46-46and a cutting edge 43 designed to be successively engaged by the threecutting side of disc 33 .andare set back ra suitable dismembers 44, 44,44 Yof disc 33, tofact l.asaslriear The cutting members 44 are rivetedto the under tance from the ends of the channels 38-38--38, so that thewires will be caught between the discs 33 and 40 and crimped underthe-edge of the groove 35-'and 'as the kdisc revolves, the radial *arm133 will cause ythe-wire Ato tbe 'moved from across the groovef35to'offthe ends' of the-flanges V34, 34-to where it isbe'low the radialarm and The completed free to be carried with-the disc. :movement Vofthe dise'33 vleaves the end of the wire Acaught between `the discs "'33and 4I! Yand crimped under 'the Vedge of Vdisc 33 fandthereby retainedata, Figs. 1-6. It also released the wire that hadbeen heldin theretainer 'bythe'.

crimped end having been moved tothe cutaway portion '46 of disc *140.The completion of vthe movements of the retainer and twisting membersare simultaneous. A -shaft lcarrying vthe needles 80 is journaled at'theunderside of thef- Slots are providedin 'the press` of thetwistingmembers, a lever 41 is provided. 7

A shaft'48 is journaled Vat Ythe outerfend-of an arm 49 from vthe box25, Fig. l. v'Alever 41 'is secured to the shaft 48 anda crank-arm 58,carrying a roller`5I, lissecuredto the innerend of the Vshaft 48. TheVroller E5I is disposedin the groove 52 lof "an irregularannular cam onthe cam-wheel, 'the regularity `vof which is brokeny at two pointsby'being-f-arther out radially from the revolving center kof theAcam-wlfieel.

vWhen the rollerf5I is in "the regular portion of the groove 52, Vshownin ldotted llines, Fig. l, the lever 41 Will be `out ofthe way of thewire coming from the Aretainer to the eye of Va needle. One of'the twobroken sections of the annular groove is not shown. ft willbe caused toact on the roller 5I by therevolution ofthe lcam-wheel in ydirection ofarrow d and causes the'arms 53--153'to engage the Av.wire and Aforceit'into the -slots I1-I-8. The 'ends of the slots I1 and 'I8 are inalignment vandas vthewire is Vbeing forced 4into them it `engages 'theangles l545554 of the Vslot I1, Figs. 3 and4. .The wire throughthe slotI8 and in engagement with the angles 54-54 of the lslot v`I1 will causethe shaft upward by the Iaction of the lever. 'The -cam I8 is cut awayto allow'theshaftto-be so actuated. Vfhen the wire has been so forced tolabove the shoulders 55-i55, Figs..3 4and 4. the cam I0 en- '5 to berevolved backward vas the wire'is forced ner.

gages the cam-shoe 6 which brings the shaft back to its normal positionand leaves the wire caught above the shoulders 55-55 and so retained.The lever 48 is now forced back to its normal portion by the action ofthe groove 52 on the roller 5I. The wire held in the retainer at apasses through the slots I1 and I8 and above the shoulders 55-55continuing downward yto across `the opening into-the balechamber andthrough the -eye of a.-.needle tofa. spool of wire. As the bale formsthe Wire is crowded back ,through a slot in the bale chamber and causedto engage a spring 56 disposed in its path. The pressure on the wireproduced by the formation of the bale .partially overcomes the tensionof .thezspring and brings the loose end to position shown in dotted line56', Fig. 1. The spring normally parallels the slot in the bale-chamber.The loose end is turned across the slot so as to be engaged by the wire.The other end is secured to the bale-chamber in any suitable man- Theneedle 8l] brings `thekf wire from around the bale to the channel 38-ofAdisc33,'lii'g.'6. The revolution of the cam-wheelin'direction'ofarrow-d causes the lever'41 to ybe'act-uate'd'by means of the annulargroove l52 lacting on ythe roller -the bale, when being"brought back to-the retainer, will rengage vthe anglej-portions lS32-53' ofthe arms5'3-53 Vand bythe vactions 'of Vthe yneedle caused to slide onfthe"anglej portions until itis'abovethe arms v453--53 which time it in uposition to be forced yinto the slots -I1 and I8 by theaction'ofthelever 41. The vwire coming from the retainer is heldin'theslots I1and I8 as before explained. The wire from around the bale is brought Vbythe Yneedle 'to above the arms V53`53. The action 'of Y'the annulargroove on the-roller causes 'the larms 353-53 'to' engage thewireandforce lit-into the'slots' I1 and I8 and vretain it there until `theLrevolution nof shaft -13 lcloses the slot I8. AThe-lever is now causedto vrecede by the action of vltheannu'lar Vgroove 52 on the 'roller 5I.The `same -part revolution of shaft 3, above mentioned, -lalso 'releasedthe wire lheld above the shoulders 'A55-'55 `and left it retained inslot I8'by the shoulders 'I1-I`I'. To prevent the pull on the wire,heldin the retainer, bythe formation `of the bale, from revolving thedisc 33, three cam-shoes A151 are provided on the Vshaft 23, one ofwhich is in engagement with the cam `58 as 'shown Fig. 1. The cam '-58is adapted to successively engage the cam-shoes 51. One of the camshoesy51'engages vthevcam VSBuntil the tying operation begins. The mode ofoperation is as Afollows: 'The wire is held in the retainer at a, Figs.1 and-4; passes through the slots I1 and I8 above the'shoulders 55--55vand downward across the opening into the balechamber vthrough the eyeof Va needle toa spool Aof wire. The revolution of v'the shaft I bringsthe needle 88 to position'shown in Fig. 1, which brings the wire intolone of the channels 38 of fdisc 33. The continued revolution ofthecamwheel by means of one of lthe two broken sections of the annulargroove causes the arms "5B-53 of the lever Y41 to engage the wire and'force it yinto the slots `I1 and I 8 to above `the shoulders .5E-554and then recede to position shown in dotted lines,Fig. r1. Next thegear segments I3 :and '59 engage the gears II and "21 respectively whichstarts the revolutions ofthe shafts 3 and 2'3. 'The revolution ofshaftf5 next starts by gear segment 8 engaging gear 1. Both ends of thewire are now retained above the shoulders IV-ll'. As the delayed actionof shaft caused the slot I8 to be closed at its lower end and theshoulders 55-55 to be revolved from under the wire, which allows it topass to above the shoulders |1'-|'|. One of the broken sections of theannular groove now acts on the roller 5I and brings it to position shownin dotted lines, Fig. 1, which moved the lever 41 back to its normalposition. Slack in the wires is required to form the tie. As the shafts23, 3 and 5 revolve, slack in the wire held in the retainer is had bythe movement of shaft 23. As the pull on the Wire will overcome thetension of the spring 32, Fig. 1, and feed the wire to the twistingmembers as required. Slack from the wire coming from the needle is hadby the action of the twisting members pulling it through the channel 38and the eye of the needle. The Wire from the twisting members to thebale is in contact with the spring 58. The slack is had by tensionacting against the spring 56. The wire from around the bale to thetwisting members compresses the material in the bale to provide theslack required. The continued revolution of the cam-wheel completes themovement of shaft 23. The disc 33 is now revolved to Where the crimpedend of the wire is moved to the cutaway portion 46, Fig. 5, of disc 40and thereby released. The same completed revolution of disc 33 causedthe wire coming from the needle to be retained at a, Figs. l and 6, andsevered. The completed movements of the Shafts 23 and 3 are immediatelyfollowed by the completed movement of shaft 5 which leaves the slots inalignment and allows the looped portion of the wire to pass out of theslots. The completed movement of the camwheel brought the needle to itsnormal position under the bale-chamber and left the wire held in theretainer at a and disposed across the opening into the bale-chamber. Italso caused one of the broken sectionsof the annular groove to act onthe roller and cause the arms 53-53 to engage the wire and force it toabove shoulders 55-55 and then recede. The operation is now finished.

Having described the invention, what we claim as new and desire tosecure by Letters Patent is:

1. In a wire tying devicea hollow shaft, a transverse slot in saidshaft, shoulder portions Number in said shaft, a shaft journaled in saidhollow shaft. and a transverse slot in said journaled V1shaft, said slotnormally registering with the slot in said hollow shaft.

2. In a wire tying device-a shaft journaled in a hollow shaft,transverse slots at one end of each of said shafts, normallyregistering, shoulder portions in the slot of said hollow shaft andgears on the opposite ends of said shafts to rotate the said shaftsindependently.

3. In a wire tying devicea hollow shaft one end terminating in acone-shaped portion, a transverse slot in said cone shaped portion, ashaft slotted at one end journaled in said hollow shaft with said slotsnormally registering and means for rotating said shafts independently.

4. In a wire retaining member having a rotary cutter and retainer disc-aplurality of segmentary circular grooves formed between annular angesand a stationary arm extending into said groove to prevent for aninterval the rotation of wire with said disc substantially as described.

5. In a wire tying devicein combination with cutter and retainermechanism a rotatable hollow shaft with a cone shaped portion, a shaftmounted in said hollow shaft, slots in said shaft normally registering,tucker arms for forcing wire into said slots and gears to rotate saidshafts to cause portions of the wires to slip off the cone portion whileanother portion is being twisted and Wound about with another portion ofthe wire.

ORLAN S. LEE. CRAWFORD F. LEE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Name Date Trimble Jan. 16, 1883 Logan Dec. 23,1890 Porter Feb. 21, 1893 Lee Sept. 22. 1908 Wygant Jan. 12, 1909Collins Apr. 21, 1925 Crumb Aug. 13, 1946 FOREIGN PATENTS Country DateGermany Dec. 4, 1924 Number Certificate of Correction Patent No.2,492,228 December 27, 1949 ORLAN S. LEE ET AL.

It is hereby certified that errors appear in the printed specificationof the above numbered patent requiring correction as follows:

Column 3, lines 10 and 11, strike out members 44, 44, 44 of disc 33, toact as a. shear. The cuttingmembers 44 are riveted to the under andinsert the same after the Word cutting 1n hue 8, same column;

and that the said Letters Patent should be read with these correctionstherein that the seme` may conform to the record of the case in thePatent Oiice.

Slgned and sealed this 30th day of May, A. D. 1950.

[SML] THOMAS F. MURPHY,

Assistant Oommissoner of Paten'ts.

